Microsoft Flight Simulator

# Microsoft Flight Simulator with AMD Ryzen 7 9800X3D + AMD Radeon RX 6800 XT — Hardware Analysis

The combination of AMD's Ryzen 7 9800X3D and Radeon RX 6800 XT presents a compelling pairing for Microsoft Flight Simulator, a title notorious for its demanding rendering of vast landscapes, dense cities, and complex weather systems. The measured data reveals a system that performs admirably across resolution scales, though the relationship between CPU and GPU workload shifts noticeably as pixel counts rise. This analysis examines the measured FPS across 1080p, 1440p, and 4K resolutions at four quality presets, interpreting what these numbers indicate about the limiting component in this specific configuration.

Resolution Scaling

The FPS progression from 1080p to 4K reveals a classic pattern of GPU-bound scaling, but with interesting nuances at different quality settings. At Low settings, the average FPS drops from 153 at 1920x1080 to 123 at 2560x1440, a decline of 30 FPS (approximately 19.6%). Moving further to 3840x2160, the average falls to 91 FPS, representing a cumulative drop of 62 FPS (40.5%) from the 1080p baseline. This scaling is relatively gentle, suggesting that at Low settings, the CPU retains significant influence even at 4K.

At Medium settings, the pattern shifts. The 1080p average of 119 FPS drops to 96 FPS at 1440p (a 23 FPS reduction) and then to 71 FPS at 4K (a further 25 FPS reduction). The total drop from 1080p to 4K is 48 FPS (40.3%), nearly identical to the Low preset's relative decline. However, the absolute FPS values are lower, indicating that the increased graphical workload at Medium settings starts to place more pressure on the GPU.

High settings show a steeper relative decline. At 1080p, the average is 90 FPS; at 1440p, it drops to 72 FPS (an 18 FPS reduction); and at 4K, it falls to 53 FPS (a 19 FPS reduction). The total drop of 37 FPS represents a 41.1% reduction from 1080p to 4K. Ultra settings follow a similar trajectory: 85 FPS at 1080p, 69 FPS at 1440p, and 51 FPS at 4K, for a total drop of 34 FPS (40.0%).

The consistency of these relative drops — all hovering around 40% — suggests that the scaling factor is relatively uniform across settings. This implies that the RX 6800 XT's rendering load scales predictably with resolution, and the CPU maintains sufficient headroom to avoid becoming the primary bottleneck even at 1080p. The fact that 1080p Low reaches 153 FPS while 4K Ultra stays at 51 FPS indicates that the GPU is the dominant constraint at higher resolutions, but the CPU's strong single-thread performance (evidenced by its 3dmark_single_thread score of 1212 and Cinebench R23 single-core score of 2080) keeps the system from collapsing at lower resolutions.

CPU Role

The AMD Ryzen 7 9800X3D is built on the Zen 5 architecture (Granite Ridge) using a 4 nm process at TSMC, featuring 8 cores and 16 threads. Its base clock of 4.70 GHz and boost clock of 5.20 GHz provide substantial single-thread throughput, which is critical for Microsoft Flight Simulator's simulation logic. The CPU's 96 MB of shared L3 cache, combined with 1 MB L2 cache per core and 80 KB L1 per core, offers a large data reservoir for the game's complex scenery and aircraft systems.

Benchmark data shows the 9800X3D achieves a Cinebench R23 multicore score of 23230 and a single-core score of 2080. Its Passmark single-thread score of 4430 and multithread score of 40009 further illustrate its capability. The CPU's percentile ranking of 87 against all CPUs places it in the upper tier, though its nearest rivals — the AMD Ryzen 7 PRO 8840HS (avgScore 39603, deltaPct 0.4), AMD Ryzen AI 9 365 (avgScore 40048, deltaPct -0.7), AMD Ryzen 7 7700 (avgScore 40081, deltaPct -0.8), and AMD Ryzen AI 7 450 (avgScore 39485, deltaPct 0.7) — show that the 9800X3D's average benchmark score of 39768 is within 1% of these competitors. This suggests that in synthetic workloads, the 9800X3D is not dramatically ahead, but its game-specific performance may benefit from the 3D V-Cache architecture (implied by the "X3D" designation, though the cache structure shows no separate vCache3d field).

In the context of this game, the CPU's role appears to be providing consistent frame delivery rather than pushing raw maximums. The measured FPS at 1080p Low (153 FPS) and Medium (119 FPS) indicates that the CPU can drive high frame rates when the GPU is not fully saturated. However, the fact that 1080p High (90 FPS) and Ultra (85 FPS) are only 5-6 FPS apart suggests that the GPU begins to limit at these settings even at 1080p. This is a notable finding: the 9800X3D's powerful single-thread performance (passmark_singlethread score of 4430) is sufficient to feed the RX 6800 XT up to a point, but the game's engine appears to scale more with GPU load at higher presets.

GPU Role

The AMD Radeon RX 6800 XT, based on the Navi 21 chip and RDNA 2.0 architecture, is built on a 7 nm process at TSMC. It features 16 GB of GDDR6 memory on a 256-bit bus, providing 512.0 GB/s of bandwidth. The GPU's clocks include a base of 1825 MHz, a game clock of 2015 MHz, and a boost clock of 2250 MHz, with memory running at 2000 MHz (16 Gbps effective).

With 4608 shading units, 288 TMUs, and 128 ROPs, the RX 6800 XT delivers 20.74 TFLOPS of FP32 performance. Its 72 RT cores support hardware ray tracing, though Microsoft Flight Simulator's use of such features is limited. The GPU's pixel rate of 288.0 GPixel/s and texture rate of 648.0 GTexel/s indicate substantial fill-rate capabilities. Its Passmark G3D score of 24980 and 3DMark Steel Nomad DX12 score of 3689 place it at the 85th percentile against all GPUs.

The GPU's nearest rivals in the benchmark database include the NVIDIA RTX A1000 Mobile (avgScore 47743, deltaPct 1.5), Intel Arc A550M (avgScore 49737, deltaPct -2.5), NVIDIA GeForce RTX 5070 Ti (avgScore 49957, deltaPct -3), and AMD Radeon RX Vega 64 (avgScore 50001, deltaPct -3). The RX 6800 XT's average benchmark score of 48477 shows it is slightly ahead of the RTX A1000 Mobile but trails the others by 2.5-3%. This places it in a competitive mid-to-high tier, but not at the absolute top.

In this game, the GPU's role becomes increasingly dominant as resolution and quality settings rise. The 4K results — 91 FPS at Low, 71 FPS at Medium, 53 FPS at High, and 51 FPS at Ultra — demonstrate that the GPU's 16 GB VRAM and 512 GB/s bandwidth are sufficient to handle the game's textures and geometry at 4K, but the rendering load limits performance. The narrow gap between High (53 FPS) and Ultra (51 FPS) at 4K suggests that the GPU is nearing its practical limit at these settings, with only 2 FPS separating the two presets.

Measured FPS Breakdown

At 1920x1080, the system delivers strong performance across all presets. Low settings produce an average of 153 FPS, which is more than sufficient for smooth gameplay on high-refresh-rate monitors. Medium settings yield 119 FPS (with min FPS of 101 and max FPS of 137), providing a substantial frame buffer for varied scenes. High settings average 90 FPS, while Ultra settings drop to 85 FPS. The difference between High and Ultra at 1080p is only 5 FPS, indicating that the Ultra preset's additional graphical effects — likely including more detailed shadows, reflections, and terrain tessellation — have a modest impact at this resolution.

At 2560x1440, the performance curve remains healthy. Low settings average 123 FPS, Medium settings average 96 FPS (with min 82 and max 110), High settings average 72 FPS, and Ultra settings average 69 FPS. The gap between High and Ultra narrows to 3 FPS, suggesting that at 1440p, the GPU is becoming the primary constraint. The min FPS of 82 at Medium settings is noteworthy, as it indicates that even in demanding scenes, the system maintains playable frame rates.

At 3840x2160, the system shows its limitations. Low settings average 91 FPS, which is still smooth for most users. Medium settings average 71 FPS (with min 60 and max 81), providing a consistent experience that rarely dips below 60 FPS. High settings average 53 FPS, and Ultra settings average 51 FPS. The min FPS of 60 at Medium 4K is a critical data point: it suggests that this is the highest preset that reliably maintains 60 FPS at 4K. High and Ultra presets, with averages below 54 FPS, will experience visible stutter during complex scenes such as dense urban areas or heavy weather.

The complete measured FPS table is as follows:

| Resolution | Settings | Avg FPS | Min FPS | Max FPS |

|------------|----------|---------|---------|---------|

| 1920x1080 | Low | 153 | — | — |

| 1920x1080 | Medium | 119 | 101 | 137 |

| 1920x1080 | High | 90 | — | — |

| 1920x1080 | Ultra | 85 | — | — |

| 2560x1440 | Low | 123 | — | — |

| 2560x1440 | Medium | 96 | 82 | 110 |

| 2560x1440 | High | 72 | — | — |

| 2560x1440 | Ultra | 69 | — | — |

| 3840x2160 | Low | 91 | — | — |

| 3840x2160 | Medium | 71 | 60 | 81 |

| 3840x2160 | High | 53 | — | — |

| 3840x2160 | Ultra | 51 | — | — |

How This Combo Ranks

The combo rank for this CPU-GPU pairing in Microsoft Flight Simulator is 1156 out of 3714 tested combinations. This places it in the top 31.1% of all tested configurations, which is a respectable position given the game's demanding nature. The rank of 1156 suggests that there are many combinations that achieve higher frame rates, likely featuring more recent or higher-tier GPUs (such as the NVIDIA GeForce RTX 5070 Ti that appears as a rival to the RX 6800 XT, with a 3% higher average benchmark score).

However, it's important to contextualize this rank. The 9800X3D's CPU percentile of 87 and the RX 6800 XT's GPU percentile of 85 both indicate that this hardware sits in the upper range of their respective categories. The combo rank of 1156 out of 3714 means that roughly two-thirds of tested combinations perform worse, which aligns with the hardware's mid-to-high-tier positioning.

The deltaPct values from the nearest rivals provide additional context. The CPU's closest competitors — the Ryzen 7 7700 (deltaPct -0.8) and Ryzen AI 9 365 (deltaPct -0.7) — are nearly identical in synthetic benchmarks, yet the 9800X3D's game-specific performance may differ due to its cache architecture. Similarly, the GPU's rivals show that the RX 6800 XT is slightly behind the Intel Arc A550M and RTX 5070 Ti in average benchmark scores, but the measured FPS in this game demonstrates that it handles Microsoft Flight Simulator competently.

The rank of 1156 is notable because it suggests that while this combo is not at the absolute modern, it provides a solid foundation for this particular game. The data indicates that users seeking higher performance would need to look at significantly more powerful GPUs, as the CPU's capabilities are already well-utilized.

Settings Recommendations

Based on the measured FPS data, the optimal settings depend heavily on the user's resolution target and frame rate preference.

For 1080p users, the system is capable of running Ultra settings at an average of 85 FPS, which is smooth for most gaming scenarios. However, the 5 FPS difference between High (90 FPS) and Ultra (85 FPS) suggests that the Ultra preset's additional visual fidelity comes at a relatively small cost. If the user prioritizes maximum visual quality and has a 60 Hz or 75 Hz monitor, Ultra is the clear choice. For those with high-refresh-rate displays (120 Hz or above), High settings at 90 FPS provide a better balance, and Low settings at 153 FPS would be appropriate for competitive or maximum fluidity scenarios.

At 1440p, Medium settings deliver 96 FPS with a min FPS of 82, which is an excellent combination of visual quality and smoothness. This preset maintains frame rates well above 60 FPS even in demanding scenes, making it the recommended choice for most users. High settings at 72 FPS are also viable for 60 Hz displays, but the min FPS data is not available for this preset, so users may experience occasional dips. Ultra at 69 FPS is borderline — it averages near 60 FPS but lacks the min FPS data to guarantee consistent performance. Low settings at 123 FPS are ideal for high-refresh-rate monitors but sacrifice significant visual quality.

At 4K, Medium settings are the clear recommendation. The 71 FPS average with a min FPS of 60 ensures that the game remains playable throughout, and the max FPS of 81 indicates headroom in less demanding scenes. Low settings at 91 FPS provide additional smoothness for users who prefer higher frame rates, but the visual compromise is substantial. High settings at 53 FPS and Ultra at 51 FPS are below the 60 FPS threshold, which may result in noticeable judder during panning or fast flight maneuvers. For users who insist on High or Ultra at 4K, the data suggests that they would need to accept frame rates in the low 50s, which is playable but not ideal for a flight simulator where smoothness is critical for immersion.

The data reveals a clear hierarchy: Medium settings at 4K provide the best balance of visual quality and performance, while High and Ultra should be reserved for users with adaptive sync displays who can tolerate slight frame rate fluctuations. At 1440p, Medium is also the sweet spot, with High being a viable alternative for those with 60 Hz monitors. At 1080p, Ultra is accessible without significant sacrifice.

FAQ

Q: What is the average FPS at 4K Ultra settings?

A: The average FPS at 3840x2160 with Ultra settings is 51 FPS. This is below the 60 FPS threshold that many users consider the minimum for smooth gameplay, so it may not be ideal for all players.

Q: Can this system maintain 60 FPS at 4K?

A: Yes, but only at Medium settings, where the average FPS is 71 with a minimum FPS of 60. At High and Ultra settings, the averages drop to 53 and 51 FPS respectively, which means the system will frequently fall below 60 FPS in complex scenes.

Q: How does the Ryzen 7 9800X3D compare to its nearest CPU rivals?

A: The 9800X3D has an average benchmark score of 39768, which is 0.4% higher than the AMD Ryzen 7 PRO 8840HS (39603), 0.7% higher than the AMD Ryzen AI 7 450 (39485), but 0.7% lower than the AMD Ryzen AI 9 365 (40048) and 0.8% lower than the AMD Ryzen 7 7700 (40081). These differences are minor and unlikely to cause noticeable performance variations in this game.

Q: What is the combo's rank among all tested CPU-GPU combinations in this game?

A: The combo ranks 1156 out of 3714 tested combinations, placing it in the top 31.1% of all configurations. This indicates that while it is not at the very top, it outperforms the majority of tested systems in Microsoft Flight Simulator.

Q: Is the RX 6800 XT's 16 GB VRAM sufficient for this game at 4K?

A: The measured data indicates that 16 GB of VRAM is sufficient, as the system achieves playable frame rates at 4K Medium (71 FPS average) and even 4K Low (91 FPS average). The memory bandwidth of 512.0 GB/s appears adequate for the game's texture streaming requirements, though performance at High and Ultra suggests the GPU's compute capabilities, rather than VRAM capacity, are the limiting factor.

Q: What is the difference in average FPS between 1080p and 4K at High settings?

A: At High settings, the average FPS drops from 90 at 1920x1080 to 72 at 2560x1440 and then to 53 at 3840x2160. This represents a total reduction of 37 FPS (41.1%) from 1080p to 4K, indicating that the GPU's rendering load scales significantly with resolution.